Finding the Third Proportional to 587,493 and 879,012

Step by Step Solution

1. Step 1: Write the proportion equation
   587,493 : 879,012 = 879,012 : x
2. Step 2: Convert to fraction form
   587,493/879,012 = 879,012/x
3. Step 3: Cross multiply
   587,493x = 879,012 × 879,012
4. Step 4: Simplify right side
   587,493x = 772,662,096,144
5. Step 5: Solve for x
   x = 772,662,096,144/587,493
6. Step 6: Final answer
   x = 1,315,185.20